Author Topic: triumph twin cranks  (Read 6413 times)

wetdog

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triumph twin cranks
« on: January 06, 2013, 02:23:24 PM »
when did triumph do a twin with a alternater and a bolt up crank which model and year would be good , im sure the crank is pre unit but ive not seen a bolt up alt before , thanks

Offline L.A.B.

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Re: triumph twin cranks
« Reply #1 on: January 06, 2013, 07:36:34 PM »
Triumph TRW?
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wetdog

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Re: triumph twin cranks
« Reply #2 on: January 06, 2013, 08:09:19 PM »
maybe i will look into that thanks , would you know how i could ident this as a trw crank there is cast on both halfs E3296 if that helps and big end jornals are 1and 5/8 . rods are the alloy type with shells ...............no just had a look and shows trw rods as one piece which these are not ...any other ideas ?
« Last Edit: January 06, 2013, 08:13:13 PM by wetdog »

Offline R

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Re: triumph twin cranks
« Reply #3 on: January 07, 2013, 11:14:12 AM »
A quick google of that number turns up mention of a mid-1950s T110 crank.

Offline L.A.B.

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Re: triumph twin cranks
« Reply #4 on: January 07, 2013, 04:07:43 PM »
A quick google of that number turns up mention of a mid-1950s T110 crank.


I don't think any T110 model had an alternator, however the 5T and 6T models did (from 1954) when the cranks were still the bolt-up type. According to the 1954 parts book the T110 and 6T had the same crankshaft assembly: E3295
« Last Edit: January 07, 2013, 04:15:31 PM by L.A.B. »
L.A.B.

wetdog

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Re: triumph twin cranks
« Reply #5 on: January 07, 2013, 06:16:32 PM »
would you happen to know . did they have the 1and 5/8 big ends thanks

Offline L.A.B.

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Re: triumph twin cranks
« Reply #6 on: January 07, 2013, 06:46:54 PM »
would you happen to know . did they have the 1and 5/8 big ends thanks

Yes, according to the Sept '54 edition 99-0837 workshop manual, the crank big end journals were 1.6235" - 1.6240 (1-5/8 = 1.6250")
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wetdog

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Re: triumph twin cranks
« Reply #7 on: January 08, 2013, 09:08:09 AM »
thankyou